Many of us use plastic flower or deer netting to hide landscaping, fruit trees and gardens from hungry deer. But what we may not realize is that while it may deter deer, it can harm other wild animals. When birds fly in between the holes of netting to go into a fruit tree, for example, it can be impossible for them to figure out how to escape. And animals can get caught in the holes and have a slow, painful death. If you must use netting, use the kind with the tiniest, smallest holes available.